Fill the system with a mixture of clean water and ethylene glycol base permanent type
antifreeze (Check with Organizational Maintenance for the proper mixture of water and
antifreeze plus thread sealer for the ether sender unit).
a. APPLY THREAD SEALER (SEE APPENDIX D) TO ETHER SENDER UNIT AND
INSTALL ETHER SENDER UNIT IN ENGINE BLOCK DRAIN PORT BY TURN-
ING TO THE RIGHT, TIGHTEN USING ADJUSTABLE WRENCH (SEE APPEN-
DIX B), AND INSTALL WIRE CONNECTOR. CLOSE RADIATOR DRAINCOCK,
AND OPEN DRAINCOCK VENTS AT THERMOSTAT HOUSING AND OIL
b. POUR COOLANT INTO RADIATOR FILLER NECK UNTIL SIGHT GLASS IS
FULL AND COOLANT FLOWS FROM THE TWO DRAINCOCK VENTS. CLOSE
TWO DRAINCOCK VENTS.
c. START ENGINE AND ALLOW IT TO REACH NORMAL OPERATING TEM-
PERATURE (180°F TO 200°F).
d. RECHECK COOLANT LEVEL.
e. PUT ON RADIATOR CAP.
f. CHECK FOR LEAKS.
Let radiator cool before removing cap. Remove radiator
cap in two steps. First, place a thick cloth over the cap and
slowly rotate cap left to its first stop; pause, and let pres-
sure escape from cooling system. Then rotate cap farther
left until you can remove it. Failure to follow this pro-
cedure can result in serious burns.
a. REMOVE RADIATOR CAP.
b. OPEN THE DRAINCOCK VENT AT THE THERMOSTAT HOUS-
c. ADD COOLANT UNTIL RADIATOR SIGHT GLASS IS FULL
AND COOLANT FLOWS FROM DRAINCOCK VENT AT THE
THERMOSTAT HOUSING. CLOSE DRAINCOCK VENT.
d. PUT ON RADIATOR CAP.
e. CHECK FOR LEAKS